CN208467856U - Electro spindle fixture with automatic tension function - Google Patents
Electro spindle fixture with automatic tension function Download PDFInfo
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- CN208467856U CN208467856U CN201820927488.6U CN201820927488U CN208467856U CN 208467856 U CN208467856 U CN 208467856U CN 201820927488 U CN201820927488 U CN 201820927488U CN 208467856 U CN208467856 U CN 208467856U
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- adjusting center
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Abstract
The utility model provides a kind of electro spindle fixture with automatic tension function, including adjusting center collet and automatic tensioning mechanism, workpiece is mounted on adjusting center collet by pilot pin and is strained and fixed by automatic tensioning mechanism to adjusting center collet, installation accuracy is high, so as to significantly improve the machining accuracy to workpiece, automatic tensioning mechanism in the utility model is at work, piston rod is driven to move to the left by piston drive mechanism first, and then drive limited block I, piston bush, spring pocket, positioning sleeve and aligning pull rod move to the left, spring is compressed, workpiece is mounted on adjusting center collet by pilot pin, when cylinder body stops working, piston bush retracts, cylinder body is all made of as power source to workpiece and adjusting center the collet whole process that be strained and fixed by the restoring force of spring, it is not related to electrical Control, overall structure are stablized.
Description
Technical field
The utility model belongs to numerical control machine tool technique field, and in particular to a kind of electro spindle use with automatic tension function
Fixture.
Background technique
With the high speed development of China's machinery manufacturing industry, various lathe demands are increased, traditional mechanical transmission-type lathe
Spindle box, which relies primarily on, needs mechanical reduction and mechanical speed change, and not only structure is complicated, and precision and revolving speed are lower, with electrical
It the rapid development of drive technology and is gradually improved, the mechanical structure of High Speed NC Machine Tools main transmission has obtained great letter
Change, substantially eliminates belt wheel transmission and gear drive, not only simplify structure, and the revolving speed of lathe spindle greatly improved
And precision, wherein built-in type spindle motor unit has become one of the numerically-controlled machine tool core functional components of optimum high-performance operating condition,
It is now either at home or external, electro spindle using more and more extensive, it is well known that the output end of electro spindle can be used to
Workpiece is installed, during installation, is overlapped the central axis of workpiece and electro spindle to improve grinding accuracy and become big
The key points and difficulties of family's research.
Utility model content
The purpose of the utility model is to provide the electro spindle fixture with automatic tension function, including adjusting center collet and
Workpiece is mounted on adjusting center collet and by automatic tensioning mechanism to adjusting center collet by automatic tensioning mechanism by pilot pin
It is strained and fixed, installation accuracy is high, so as to significantly improve the machining accuracy to workpiece.
In order to achieve the above object, the technical scheme adopted by the utility model is
Electro spindle fixture with automatic tension function, the fixture include front rotary shaft, adjusting center collet and automatic drawing
Tight mechanism, the front rotary shaft are hollow structure, and the front rotary shaft is mounted on electro spindle and can rotate synchronously with electro spindle, passes through
Workpiece is strained and fixed on adjusting center collet by automatic tensioning mechanism, which further includes shell, piston, piston bush and axis
It holds, the front rotary shaft is threaded through the inside of the shell, and the front end of shell, the adjusting center folder is arranged in the adjusting center collet
The inside of head offers the location hole passed through for pilot pin along central axial direction, and the threaded shank of the pilot pin is successively from institute
It states workpiece and positioning hole is passed through and is threadedly coupled afterwards with the automatic tensioning mechanism of setting inside housings；
The bearing is arranged between the front rotary shaft and the shell, the piston, piston bush and automatic tensioning mechanism
It is arranged in the internal cavities of the front rotary shaft, the lateral wall of the piston is fixedly connected with the inner wall of the front rotary shaft, institute
State it is axially disposed in front rotary shaft have an axial passage I, it is axially disposed in the shell to have axial passage II, the axial passage
I one end is connected with the oil pocket of internal piston, and the other end of the axial passage I is logical by radial passage I and the axial direction
The one end in road II is connected, and the other end of the axial passage II is connected with piston drive mechanism, and the piston is set on
The front end of piston, the inside of the piston are equipped with piston rod, and the rear end of the piston bush offers in through-hole I and the through-hole I
It is provided with the limited block I being fixedly connected with piston bush, the rear end of the piston rod is arranged after being pierced by out of piston in the piston
Outside, the front end of the piston rod be pierced by out of piston after is fixedly connected with the limited block I, the automatic tensioning mechanism is set
It sets in the front end of the piston bush；When oil cylinder body running, piston drive mechanism drives piston rod to move to the left, and then drives
Limited block I and automatic tensioning mechanism move to the left, and spring is compressed, and workpiece is mounted on automatic tensioning mechanism by pilot pin
On, when cylinder body stops working, piston bush retracts, and tense to workpiece and adjusting center collet by automatic tensioning mechanism solid
It is fixed；
The automatic tensioning mechanism includes pull rod, spring, spring pocket, aligning pull rod and positioning sleeve, the spring pocket
The front end face contact of rear end and the piston bush, it is limited that the front end of the spring pocket offers setting in through-hole II and the through-hole II
Position block II, the front end of the spring pocket can be slided on the limited block II, and the pull rod is threaded through the inside of the spring pocket
And one end of the pull rod is fixedly connected with the limited block II, the rear end inner wall of the other end of the pull rod and the spring pocket is solid
Fixed connection, the limited block II are fixedly connected far from one end of the pull rod with positioning sleeve, the outer wall of the positioning sleeve with it is described
The inner wall of front rotary shaft is fixedly connected, and the positioning sleeve is internally provided with cavity, and the aligning pull rod includes the spiral shell being wholely set
The head on bar portion and head, the aligning pull rod is fastened in the internal cavities of the positioning sleeve, the screw rod of the aligning pull rod
Portion is successively pierced by the rear threaded shank with the pilot pin from the front end of positioning sleeve and location hole and is threadedly coupled.
Further, be provided with bushing between the automatic tensioning mechanism and the front rotary shaft, the bushing and it is described before
Shaft is bolted to connection, and the outer wall of the positioning sleeve is fixedly connected with the inner wall of the bushing, before the front rotary shaft
Front axle bearing assembly is installed on the outer wall of end, is fixedly connected with rear axle bearing assembly I on the front end outer wall of the shell.
Further, the threaded shank of the pilot pin is provided with thread protrusion, the spiral shell of the aligning pull rod at outermost
Bar portion offers the thread groove to match with thread protrusion at outermost, and the pilot pin is threaded in by thread protrusion
In the thread groove opened up on the aligning pull rod.
Further, adjustment sheet, the fore bearing group are provided between the front axle bearing assembly and the rear axle bearing assembly I
It is connected between part, the rear axle bearing assembly I and the adjustment sheet three by bolt.
Further, the rear end of the adjusting center collet, which offers, is embedded with for will be adjustable in mounting groove and the mounting groove
Heart collet is adsorbed on the annular magnet on front rotary shaft, is provided with magnetic shield between the annular magnet and adjusting center collet.
Further, one end of the radial passage I is connected after the inner wall of the shell with the axial passage II
Logical, the other end of the radial passage I is connected after the inner wall of the front rotary shaft with axial passage I.
Further, the piston drive mechanism is cylinder body or cylinder block.
Compared with prior art, the utility model has the beneficial effects that
1, the automatic tensioning mechanism in the utility model at work, first by piston drive mechanism drive piston rod to
Left side is mobile, and then limited block I, piston bush, spring pocket, positioning sleeve and aligning pull rod is driven to move to the left, and spring is pressed
Workpiece, is mounted on adjusting center collet by contracting by pilot pin, and when cylinder body stops working, piston bush retracts, by spring
Restoring force cylinder body is all made of as power source to workpiece and adjusting center the collet whole process that be strained and fixed, be not related to electricity
Gas control system, overall structure are stablized；
2, workpiece is mounted on adjusting center collet by the utility model by pilot pin, so that the central axis of workpiece is always
It is overlapped with the central axis of front rotary shaft, installation accuracy is high, so as to significantly improve the machining accuracy to workpiece；
3, the utility model compact overall structure, high degree of automation, high production efficiency.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Marked in the figure: 1, adjusting center collet, 2, magnetic shield, 3, annular magnet, 4, aligning pull rod, 5, positioning sleeve, 6, spring
Set, 7, spring, 8, pull rod, 9, piston bush, 10, piston, 11, piston rod, 12, front rotary shaft, 13, bearing, 14, workpiece, 15, positioning
Bolt, 16, shell, 17, bushing, 18, limited block II, 19, front axle bearing assembly, 20, adjustment sheet, 21, rear axle bearing assembly I, 22, limit
Block I.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described reality
Applying example is the utility model a part of the embodiment, instead of all the embodiments, based on the embodiments of the present invention, ability
It is practical new to belong to this for domain those of ordinary skill every other embodiment obtained without creative efforts
The range of type protection.
As shown in Figure 1, the electro spindle fixture with automatic tension function, which includes front rotary shaft 12, adjusting center folder
First 1 and automatic tensioning mechanism, front rotary shaft 12 is hollow structure, and front rotary shaft 12 is mounted on electro spindle and can be with electro spindle synchronization
Workpiece 14, is strained and fixed on adjusting center collet 1, which further includes shell 16, piston by rotation by automatic tensioning mechanism
10, piston bush 9 and bearing 13, front rotary shaft 12 is threaded through the inside of shell 16, before shell 16 is arranged in adjusting center collet 1
End, the inside of adjusting center collet 1 offers the location hole passed through for pilot pin 15, the spiral shell of pilot pin 15 along central axial direction
Bar portion is successively passed through from workpiece 14 and positioning hole and is threadedly coupled afterwards with the automatic tensioning mechanism being arranged in inside shell 16；Into one
Step optimization this programme, the threaded shank of pilot pin 15 are provided with thread protrusion at outermost, and the threaded shank of aligning pull rod 4 is outermost
The thread groove to match with thread protrusion is offered at side, pilot pin 15 is threaded on aligning pull rod 4 by thread protrusion
In the thread groove opened up, to carry out aligning to workpiece.
Bearing 13 is arranged between front rotary shaft 12 and shell 16, and piston 10, piston bush 9 and automatic tensioning mechanism are arranged at
In the internal cavities of front rotary shaft 12, the lateral wall of piston 10 is fixedly connected with the inner wall of front rotary shaft 12, along axial direction in front rotary shaft 12
It is provided with axial passage I, it is axially disposed in shell 16 to have an axial passage II, inside one end of axial passage I and piston 10
Oil pocket is connected, and the other end of axial passage I is connected by radial passage I with one end of axial passage II, axial passage II
The other end be connected with piston drive mechanism, piston drive mechanism be cylinder body or cylinder block, piston bush 9 be arranged in piston 10
Front end, the inside of piston 10 is equipped with piston rod 11, the rear end of piston bush 9 offer be provided in through-hole I and the through-hole I with
The outside of piston 10 is arranged in the limited block I 22 that piston bush 9 is fixedly connected, the rear end of piston rod 11 after being pierced by out of piston 10,
The front end of piston rod 11 is fixedly connected after being pierced by out of piston 10 with limited block I 22, and piston bush 9 is arranged in automatic tensioning mechanism
Front end；When cylinder body 22 works, piston drive mechanism drives piston rod 11 to move to the left, and then drives I 22 He of limited block
Automatic tensioning mechanism moves to the left, and spring 7 is compressed, and workpiece 14 is mounted on automatic tensioning mechanism by pilot pin 15,
When cylinder body stops working, piston bush 9 retracts, and tenses by automatic tensioning mechanism to workpiece 14 and adjusting center collet 1
It is fixed；
Automatic tensioning mechanism includes pull rod 8, spring 7, spring pocket 6, aligning pull rod 4 and positioning sleeve 5, after spring pocket 6
The front end face contact at end and piston bush 9, the front end of spring pocket 6 offers in through-hole II and the through-hole II and is provided with limited block II
18, the front end of spring pocket 6 can be slided on limited block II 18, and pull rod 8 is threaded through one end of the inside of spring pocket 6 and the pull rod 8
It is fixedly connected with limited block II 18, the other end of pull rod 8 is fixedly connected with the rear end inner wall of spring pocket 6, and limited block II 18 is separate
One end of pull rod 8 is fixedly connected with positioning sleeve 5, and the outer wall of positioning sleeve 5 is fixedly connected with the inner wall of front rotary shaft 12, positioning sleeve 5
It is internally provided with cavity, aligning pull rod 4 includes that the threaded shank being wholely set and head, the head of aligning pull rod 4 are fastened on positioning
In the internal cavities of set 5, the threaded shank of aligning pull rod 4 is successively pierced by rear and pilot pin 15 from the front end of positioning sleeve 5 and location hole
Threaded shank be threadedly coupled.
This programme is advanced optimized, bushing 17, bushing 17 and forward are provided between automatic tensioning mechanism and front rotary shaft 12
Axis 12 is bolted to connection, and bushing is made of wear-resistant material and detachably installs, and can effectively prevent the abrasion of front rotary shaft,
The outer wall of positioning sleeve 5 is fixedly connected with the inner wall of bushing 17, is equipped with front axle bearing assembly 19, shell on the front end outer wall of front rotary shaft 12
It is fixedly connected with rear axle bearing assembly I 21 on the front end outer wall of body 16, is provided between front axle bearing assembly 19 and rear axle bearing assembly I 21
Adjustment sheet 20 is connected between 20 three of front axle bearing assembly 19, rear axle bearing assembly I 21 and adjustment sheet by bolt, passes through selection
The distance between the adjustable front rotary shaft of the adjustment sheet of different-thickness and shell are in turn adjusted the compressible amount of spring, from
And various sizes of workpiece can be installed on adjusting center collet.
This programme is advanced optimized, the rear end of adjusting center collet 1 offers to be embedded in mounting groove and the mounting groove and be used for
Adjusting center collet 1 is adsorbed on the annular magnet 3 on front rotary shaft 12, is provided between annular magnet 3 and adjusting center collet 1 every magnetic
Set 2, so can prevent adjusting center collet from falling when dismantling after installing to workpiece.
One end of radial passage I is connected after the inner wall of shell 16 with axial passage II, the other end of radial passage I
It is connected after the inner wall of front rotary shaft 12 with axial passage I.
Piston drive mechanism is cylinder body or cylinder block.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. the electro spindle fixture with automatic tension function, which includes front rotary shaft, adjusting center collet and automatic tension
Mechanism, the front rotary shaft are hollow structure, and the front rotary shaft is mounted on electro spindle and can rotate synchronously with electro spindle, by certainly
Workpiece is strained and fixed on adjusting center collet by dynamic tensioning mechanism, it is characterised in that: the fixture further includes shell, piston, piston
Set and bearing, the front rotary shaft are threaded through the inside of the shell, and the front end of shell is arranged in the adjusting center collet, described
The inside of adjusting center collet offers the location hole passed through for pilot pin, the threaded shank of the pilot pin along central axial direction
It successively passes through from the workpiece and positioning hole and is threadedly coupled afterwards with the automatic tensioning mechanism of setting inside housings；
The bearing is arranged between the front rotary shaft and the shell, and the piston, piston bush and automatic tensioning mechanism are all provided with
It sets in the internal cavities of the front rotary shaft, the lateral wall of the piston is fixedly connected with the inner wall of the front rotary shaft, before described
It is axially disposed in shaft to have an axial passage I, it is axially disposed in the shell to have axial passage II, the axial passage I
One end is connected with the oil pocket of internal piston, and the other end of the axial passage I passes through radial passage I and the axial passage II
One end be connected, the other end of the axial passage II is connected with piston drive mechanism, and the piston is set on piston
Front end, the inside of the piston is equipped with piston rod, and the rear end of the piston bush offers setting in through-hole I and the through-hole I
There is the limited block I being fixedly connected with piston bush, the outer of the piston is arranged in the rear end of the piston rod after being pierced by out of piston
Side, the front end of the piston rod are fixedly connected after being pierced by out of piston with the limited block I, and the automatic tensioning mechanism setting exists
The front end of the piston bush；When oil cylinder body running, piston drive mechanism drives piston rod to move to the left, and then drives limit
Block I and automatic tensioning mechanism move to the left, and spring is compressed, and workpiece is mounted on automatic tensioning mechanism by pilot pin,
When cylinder body stops working, piston bush retracts, and is strained and fixed by automatic tensioning mechanism to workpiece and adjusting center collet；
The automatic tensioning mechanism includes pull rod, spring, spring pocket, aligning pull rod and positioning sleeve, the rear end of the spring pocket
With the front end face contact of the piston bush, the front end of the spring pocket offers in through-hole II and the through-hole II and is provided with limited block
II, the front end of the spring pocket can be slided on the limited block II, and the pull rod is threaded through the inside of the spring pocket and should
One end of pull rod is fixedly connected with the limited block II, and the rear end inner wall of the other end of the pull rod and the spring pocket is fixed to be connected
It connects, the limited block II is fixedly connected far from one end of the pull rod with positioning sleeve, the outer wall of the positioning sleeve and the forward
The inner wall of axis is fixedly connected, and the positioning sleeve is internally provided with cavity, and the aligning pull rod includes the threaded shank being wholely set
And head, the head of the aligning pull rod are fastened in the internal cavities of the positioning sleeve, the threaded shank of the aligning pull rod according to
It is secondary to be pierced by the rear threaded shank with the pilot pin from the front end of positioning sleeve and location hole and be threadedly coupled.
2. the electro spindle fixture according to claim 1 with automatic tension function, it is characterised in that: the automatic drawing
It is provided with bushing between tight mechanism and the front rotary shaft, the bushing is bolted to connection with the front rotary shaft, described fixed
The outer wall of position set is fixedly connected with the inner wall of the bushing, and front axle bearing assembly, institute are equipped on the front end outer wall of the front rotary shaft
It states and is fixedly connected with rear axle bearing assembly I on the front end outer wall of shell.
3. the electro spindle fixture according to claim 1 with automatic tension function, it is characterised in that: the pilot pin
Threaded shank thread protrusion is provided at outermost, the threaded shank of the aligning pull rod offers convex with screw thread at outermost
The thread groove to match is acted, the pilot pin is threaded in the thread groove opened up on the aligning pull rod by thread protrusion
It is interior.
4. the electro spindle fixture according to claim 2 with automatic tension function, it is characterised in that: the fore bearing
It is provided with adjustment sheet between component and the rear axle bearing assembly I, the front axle bearing assembly, the rear axle bearing assembly I and described
It is connected between adjustment sheet three by bolt.
5. the electro spindle fixture according to claim 1 with automatic tension function, it is characterised in that: the adjusting center
The rear end of collet offers the annular being embedded in mounting groove and the mounting groove for being adsorbed on adjusting center collet on front rotary shaft
Magnet is provided with magnetic shield between the annular magnet and adjusting center collet.
6. the electro spindle fixture according to claim 1 with automatic tension function, it is characterised in that: the radial direction is logical
The one end in road I is connected after the inner wall of the shell with the axial passage II, and the other end of the radial passage I runs through
It is connected after the inner wall of the front rotary shaft with axial passage I.
7. the electro spindle fixture according to claim 1 with automatic tension function, it is characterised in that: the piston drives
Motivation structure is cylinder body or cylinder block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820927488.6U CN208467856U (en) | 2018-06-15 | 2018-06-15 | Electro spindle fixture with automatic tension function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820927488.6U CN208467856U (en) | 2018-06-15 | 2018-06-15 | Electro spindle fixture with automatic tension function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208467856U true CN208467856U (en) | 2019-02-05 |
Family
ID=65213783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820927488.6U Active CN208467856U (en) | 2018-06-15 | 2018-06-15 | Electro spindle fixture with automatic tension function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208467856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586964A (en) * | 2019-10-10 | 2019-12-20 | 河北力准机械制造有限公司 | Novel headstock drive is taut device and digit control machine tool |
| CN115194530A (en) * | 2022-07-16 | 2022-10-18 | 德州恒力电机有限责任公司 | Large-torque electric spindle induction motor for numerical control machine tool |
| CN116060984A (en) * | 2023-03-29 | 2023-05-05 | 湖南中大创远数控装备有限公司 | Tensioning oil cylinder structure, clamp and spiral bevel gear machine tool |
-
2018
- 2018-06-15 CN CN201820927488.6U patent/CN208467856U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586964A (en) * | 2019-10-10 | 2019-12-20 | 河北力准机械制造有限公司 | Novel headstock drive is taut device and digit control machine tool |
| CN110586964B (en) * | 2019-10-10 | 2024-04-16 | 河北力准机械制造有限公司 | Novel headstock drive tensioning device and numerical control machine tool |
| CN115194530A (en) * | 2022-07-16 | 2022-10-18 | 德州恒力电机有限责任公司 | Large-torque electric spindle induction motor for numerical control machine tool |
| CN116060984A (en) * | 2023-03-29 | 2023-05-05 | 湖南中大创远数控装备有限公司 | Tensioning oil cylinder structure, clamp and spiral bevel gear machine tool |
| CN116060984B (en) * | 2023-03-29 | 2023-06-27 | 湖南中大创远数控装备有限公司 | Tensioning oil cylinder structure, clamp and spiral bevel gear machine tool |
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